10421518 has 8 divisors (see below), whose sum is σ = 16136640. Its totient is φ = 5042640.

The previous prime is 10421513. The next prime is 10421539. The reversal of 10421518 is 81512401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83983 + ... + 84106.

It is an arithmetic number, because the mean of its divisors is an integer number (2017080).

Almost surely, 2^10421518 is an apocalyptic number.

10421518 is a deficient number, since it is larger than the sum of its proper divisors (5715122).

10421518 is a wasteful number, since it uses less digits than its factorization.

10421518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168122.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 10421518 is about 3228.2375996819. The cubic root of 10421518 is about 218.4290151623.

Adding to 10421518 its reverse (81512401), we get a palindrome (91933919).

The spelling of 10421518 in words is "ten million, four hundred twenty-one thousand, five hundred eighteen".